Reorder the NativeViews attached to a view via kViewHostKey according to the position of the view

ui/views/widget/widget.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/widget/widget.h"
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/utf_string_conversions.h"
@@ skipping 866 matching lines @@
 }
 
 ui::Compositor* Widget::GetCompositor() {
   return native_widget_->GetCompositor();
 }
 
 ui::Layer* Widget::GetLayer() {
   return native_widget_->GetLayer();
 }
 
+void Widget::ReorderNativeViews() {
+  native_widget_->ReorderNativeViews();
+}
+
 void Widget::UpdateRootLayers() {
   // Calculate the layers requires traversing the tree, and since nearly any
   // mutation of the tree can trigger this call we delay until absolutely
   // necessary.
   root_layers_dirty_ = true;
 }
 
 const NativeWidget* Widget::native_widget() const {
   return native_widget_;
 }
@@ skipping 505 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // internal::NativeWidgetPrivate, NativeWidget implementation:
 
 internal::NativeWidgetPrivate* NativeWidgetPrivate::AsNativeWidgetPrivate() {
   return this;
 }
 
 }  // namespace internal
 }  // namespace views